Stephen Mwangi Email & Phone Number

Nairobi, Kenya

- Led the design and development of the backend of an Electronic Medical Records and Patient Engagement system (Python, Django, Django Rest Framework, Kubernetes, GCP, Docker, RabbitMQ, Redis, Go, GraphQL)- Implemented and designed the company’s SMS and USSD API gateway and integrated it with a major Kenyan telecommunications provider, reducing comms costs by ≈40% (Python, Django, Django Rest Framework, GCP, RabbitMQ, Redis, Swagger/OpenAPI documentation)- Participated in re-platforming existing backend infrastructure from Google Cloud Run to use Google Kubernetes Engine which reduced the company’s infrastructure cost by ≈55%- Implemented an event-driven usage-based billing module that integrated with prepaid wallets on an internal ERP system- Optimized existing APIs through application-level caching and query optimization which reduced p95 latency by ≈80%- Setup observability to collect metrics and logs using Telegraf, InfluxDB, Grafana, and Sentry for monitoring and error-reporting- Guide and coach new hires and interns

Nairobi, Kenya

- Maintained and developed the Slade360 Electronic Data Interchange system (Python, Django, DRF)- Wrote unit, integration, and end-to-end tests